/Engine/Source/Editor/GraphEditor/Public/SGraphPalette.h
Create the text widget
virtual [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [SWidget](API\Runtime\SlateCore\Widgets\SWidget) > CreateTextSlotWidget ( [FCreateWidgetForActionData](API\Editor\GraphEditor\FCreateWidgetForActionData) *const InCreateData, [TAttribute](API\Runtime\Core\Misc\TAttribute)< bool > bIsReadOnly )